Arch-brick and supporting means therefor.



J. P. NEFF.

' ARCH BRICK AND SUPPORTING MEANS THEREFOR.

APPLICAHON FILED JAN. 10. 1912.

3 1 wa Patented May 4, 1915.

W] Tmassl s 6 LWEMOR.

BY MM M M A TTORNI'JY.

JGHN P. NEFIY, QLE" BRGOKLYN, NEW YORK, ASSEGNOR, BY MESNE ASSIGNMENTS, T0 All HERMAN 3303. COMPi-tll'i', G33 NEW YORK, N. "K, A. CORPORATION OF DELAWARE.

Specification of Letters Patent.

TICK AN?) SUPPORTXNG EEEANS THEEEFDB.

Patented May d, 1915.

Application filed January 10, 1912. Serial No. 670,403.

- Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Arch-Brick and Supporting Means Therefor, of which the following is a specification.

This invention has reference to certain improvements in arch bricks and a support therefor and particularly applicable to the construction as used in a locomotive fire box. The first of the objects of my invention is the provision of a new means for support ing the arch brick at the end which is adjacent the side sheet of the locomotive fire box,

which improved means will afford a more stable support than has heretofore been used, and will also provideniore effectively for any ex 'iansion and contraction which may take place, and will in general provide an arch which will. give a maximum of service at a minimum of cost.

The above, as well. as such other objects as may hereinafter appear I attain by means oi a construction which 1 have illustrated in preferred form in the accompanying drawings wherein Figure 1 is a plan view showing acouple of arch bricks in place resting upon a couple of tubes with one of the bricks bearing at one end upon a supportinglug carried from the inner side sheet of the fire box; hi 2 is a view partly in section taken on the line l ll of Fig. 1; Fig. 3 an enlarged sectional view of the improved form oi lug device which I employ as the supporting inc-ens adjacent the side sheet, and Fig. 4 is an inner face view of the lug or support ing member proper.

Referring now more 'iai'ticularly to Figure '1, it will be seen that l have therein shown two supporting tubes 5 and 6 and a portion of the inner side sheet 7 of the lire box with bricks resting in position indicated at 8 and 3), the brick 9 being formed to fit the tube 3 as shown at 10 and being supported at that end which is adjacent the sheet 7 by means of edge of the brick toward or from the side sheet occurs, it may slide up or down upon the lug 11 in a manner that will be'olea-r from examination of Fig. 2, and this Will serve to compensate for such movement.

As a support for the lug or casting 11, I screw into the side sheet 7, as indicated in Fig. 3, a stud 13 having preferably a squared head as shown, so arranged as to engage or interlock with the recess formed Within the lug 1], the aperture being made as indicated at M in Fig. 4- and constructed so that" the lug will be driven into tight contact with the side sheet by a. downward pressure of the inclination of the face 15 which engages the inner side of theheed of the stud on both sides.

By the arrangement shown the lug 11 serves to protect the stud 13 from the action of the heat, and if the lug 11 becomes damaged or'burned, it can be replaced Without the necessity of replacing the stud 13 and the replaceu'ient can be eliected by the arrangement shown with a Ininimum of e1?- pense and trouble; The lug or casting 11 is preferably made substantially of the shape shown, particularly in Figs. and l, and should be made of a size sufliciently small so as to not interfere with access to the stay belts in the fire box.

It will be noted that the intermediate brick 8 is made of substantially like shape to the brick 9, it being found that this arrangement avoids locking of the brick dlie to distortion of the areh'tubes.

if the brick to be supported is of large size it may be desirable in some cases to use more than one supporting lug for each brick but ordinarily I prefer to employ but one such lug placed near the middle of the end edge of the brick with the adjacent portions of the edge receding or inclined away from the side sheet in the manner shown in Fig. 1 whereby therev is compensation for change of angularity between the side sheet and the supporting tube that carries the opposite end of the brick.

In forming the arc socket at the one end of the brick, 1 make the are of the some a little less than 90 degrees which allows a certain clearance between adjacent bricks, as

indicated above the tube 6. It will be obviall wedging. bindine'or holding action as 110 between the brick and its supports and also any tendency to springing of the tubes. By the arrangement shown I am enabled to secure as much one inch variation of distance between 'the supporting elements for any given length of arch unit without changing the nature of the bearing upon the supporting elements and without interfering in any wise with the general arrangement.

This application is subsidiary to my earlier application Serial No. (349,219, filed September 11th, 1911, in matter of the invertibility of the arch brick; and is subsidi-- ary to the Charles B. Moore application Se rial No. 666,345, filed December 18, 1911, in matter of the compensating wcdging action of the bricks. I

Having thus described my invention and illustrated its use, what 1 claim as new and desire to secure by LcttersPatent is the fol lowing 1. In a locomotive fire-box, an arch brick havingan inclined surface and a socket at opposite ends of its upper face and an inclined face and socket at opposite ends of its lower face, the length of the upper face being different from that of the lower face to accommodate the brick to arch-support ing members which are differently spaced apart,

2. In a locomotive fire box, an arch brick having an inclined surface and a socket at opposite ends of its upper face and an inclined face and socket at opposite ends of its lower face, the length of the upper face being different from that of the lower face to accommodate the brick to arch-supporting members which are differently spaced apart, and the said inclined surfaces being adapted to rest upon and project laterally above an arch-supporting member for co1npensating engagement therewith.

In a locomotive boiler fire box, a group of arch tubes and the side sheets of said box, in con'ibination with a refractory arch body resting upon said tubes, a plurality of edge bricks, each resting upon one said tube, and extending toward but not aga'imt the adjacent side sheet, and each having abottom end portion inclined with respect to the bottom of the brick, and edge brick supports wherewith the inclined end portions of the edge bricks compensatingly engage im1nediately adjacent respective side sheets.

4-. The herein dcscril'u-d improvement in locomotive firebox arches, comprising an arch brick the lower part of which is shorter than the space between its supports while its upper part isof a length to orerhang both such supports, one end of said brick being shaped for pivotal abutment with sev eral points upon one said support and its other end having an inclined point or edge for compensating wcdging abutment with one point upon the other support whereby the brick adapted to adjust itself to such supports and retain its position thereon and whereby an arching effect is secured in the intermediate parts of the brick.

In testimony whereof I have hereunto P signed my name in the presence of the two subseri bed witnesses.

JQHN P. NEFF.

Witnesses:

Ln GRAND PARISH, H. P). Snirmncn. 

